HNO3 (aq) is having greater entropy than HNO3 (l) because Due to more disorder and a wider range of potential configurations, aqueous liquids have a higher entropy than solids. The general order of entropy rise is as follows: solids, liquids, aqueous solutions, and gases.
The well-known "products minus reactants" approach, which multiplies the absolute entropies of each reactant and product by their stoichiometric coefficients in the balanced chemical equation, is used to compute S° for a chemical reaction from standard molar entropies. Entropy is a gauge of disorder, hence substances having greater molar values might be thought of as being more disorganized. The substance's condition has the most impact on the molar entropy.
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